Question about Projection Televisions

2 Answers

Audiovox FPE1505 has picture but no sound. When there is sound, extremely faint picture and brightness and contrast have virtually no effect

Posted by on

  • 3 more comments 
  • bgloyd May 25, 2008

    All capacitors look normal and there is no sign of overheating resistors.

  • bgloyd May 26, 2008

    Yes. This happens even with the AGC source selected. The computer picture is great. If the sound is active, then the computer picture is very dim as well. You can see an image by shining a flashlight onto the screen at an oblique angle. This allows me to see the Menu functions an none seem to have any positive effects.

  • bgloyd May 26, 2008

    Sorry, I typed AGC and it should be VGA.

  • bgloyd May 27, 2008

    Unfortunately the warranty has expired. I did try other speakers as you suggested and that did not help. Thanks for trying to help.

  • bgloyd May 28, 2008

    Yes, that was my conclusion as well.

×

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 3,037 Answers

You need to look at the capacitors for one and see if any look bloated. This will require opening up the system. Also look for bad connections on the board and don't touch the capacitors as they carry a large charge. You say that when the sound works, it works good but the picture dims? This would indicate bad resistors, or the capacitors. Please have a look and tell me what you find.

If you have any questions about doing this, please ask or if you don't feel comfortable doing this, please let me know

Posted on May 25, 2008

  • 5 more comments 
  • Benjamin Patri
    Benjamin Patri May 25, 2008

    Alright, do you have an extra speaker at all? I want you to try hooking up some external speakers to see if they would work so we can narrow down the location of this problem better. Also, when you get sound, does occur on its own while the tv is on or once you turn it on the sound appears sometimes. Maybe a loose connection like I said before is causing this, when you don't have sound try bumping the tv to get sound and see if that works. Please get back to me on the external speakers. thanks

  • Benjamin Patri
    Benjamin Patri May 25, 2008

    When you opened the tv, did you check the wires from the speakers to the board at all? I don't think these are a problem since your picture is having problems when the speakers work but it is worth a look.

  • Benjamin Patri
    Benjamin Patri May 25, 2008

    I'm thinking that it may be your audio amplifier causing the problem and that it may be sucking a little too much power when working if everything above looks fine, but the external speakers would help narrow this down for sure

  • Benjamin Patri
    Benjamin Patri May 25, 2008

    also one more thing, this happens on all inputs correct? channels, dvd player, I assume so...

  • Benjamin Patri
    Benjamin Patri May 26, 2008

    You don't still have the warranty on this device do you?

    Did you try plugging in any other speakers or headphones to it and seeing if they will do the same thing to the screen?


  • Benjamin Patri
    Benjamin Patri May 27, 2008

    well then it sounds like a defective board or maybe a wire is shorting out, have another look to see if any wires running to the speakers may be shorting out. You could try rewiring the speakers and see if that helps. Otherwise, what I would try now is calling audiovox and see what they can do for you, perhaps give you a discount on a new one as I don't think it would be worth fixing but see what they say and let me know how it goes

  • Benjamin Patri
    Benjamin Patri May 28, 2008

    Please don't forget to rate my solution when you are satisfied with my service here. thanks

×

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 3,422 Answers

Hi,

Did you try a hard reset by unpluging all the cords for 4 hours and then put them back?

Posted on May 25, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Lost bothe picture and sound when watching. A bright scene in the show happened and all went dead, thought it was the station so checked others and nothing. Any ideas?


The Audio/Video section seems to have short circuit or if there is overdrive experienced this section would Shut-Off automatically switch-off and Switch-on after a time gap

Jun 26, 2015 | LG 42LE5400 Widescreen 42 Class 42.0...

1 Answer

My jvc 52g 887 had the bulb replaced 6/1/10. The picture is very dull with very little contrast. Is it the bulb?


A poor output lamp won't reduce the effective contrast so I expect it just needs slight adjustment to the contrast or brightness.
Hope that helps

Jan 25, 2011 | JVC Projection Televisions

2 Answers

In the past few day i've noticed the picture is


BRIGHTNESS. Your owner's manual probably says that the brightness setting is used to control "brightness" or "picture intensity" or something other fuzzy non-descript term. The truth is that brightness is used to set the BLACK level in the picture.
On most TVs and projectors in use today, brightness is set too high. That's because people think "a bright picture is good, so I will set it as bright as I can get." Well, that's nice in theory, but entirely wrong in practice. Setting the brightness level too high makes a black tuxedo look gray rather than black. It muddies up the shadow areas, and reduces the overall snap and crispness that the picture would have if properly calibrated.
To find the right setting for brightness, go to the image in your movie that has textured blacks and hopefully some shadow/low light areas in which there is detail. Then freeze on that frame. As you move the brightness control down, the intensity of the blacks will increase, and shadows will get darker. As you move the control all the way to zero, you will (hopefully) see that the low light shadow areas will also go to solid black and lose their detail.
The optimum setting for brightness is achieved at just the point where true black objects appear as black as your system will make them while retaining as much visible detail in the shadow areas. Above this point the blacks appear to go grayer. Below this point you lose detail in the shadows. On many video systems, this optimum point is toward the lower end of the brightness scale. But find the point that looks correct to you regardless of where it is on the scale.
CONTRAST. The contrast control is similarly confusing. It is also often set too high on the theory that contrast is good, and therefore we might as well get the most we can out of our set by turning it all the way up. In fact, the contrast setting is used to control the intensity of the brightest highlights in the picture, so it is (oddly enough) the opposite of brightness control.
First, find your test scene in which you find textured whites in bright light, and freeze that frame. You are looking for the brightest elements in the picture in which you want to retain visible detail.
Let's assume you have a whitewashed fence in sunlight. If you start with the contrast set low, the fence will appear light gray rather than white. As you move the contrast control up, the fence will get whiter. Eventually details in the texture of the fence will begin to disappear.
If you continue to push contrast past the optimum point, the wood-grain texture of the fence will go solid white and all visible detail will be obliterated. Push contrast up even a little further, and our fenceposts might actually appear to expand very slightly due to a glow around the edges. This phenomenon, called "blooming" is a definite sign that your contrast setting is overcooking the image (and maybe your picture tube as well—don't ever leave the contrast control set this high!!!)
Find the point at which whites look white while retaining as much texture detail as possible. This is your optimum contrast setting. On most video systems, this setting is toward the higher end of the scale, but it can be anywhere. Find the point that looks correct to you. (By the way, unlike TV's, digital projectors will not bloom)
Now…note the following: brightness and contrast can be to some degree interactive. Your new contrast setting may have affected your brightness. So return to the brightness scene and verify that your blacks are still black, and you still have maximum detail in the shadows. Adjust it if necessary, then return and adjust the contrast setting once again if necessary. (You can see that this is much easier if the black and white elements you are testing all appear in the same image!)
COLOR. The color control on your set determines the level of color intensity in the image. One of the most common errors people make in calibrating their video systems is overdriving the color. That's what makes Larry King look reddish-orange on the TV at the gym. Overdriving color is common because once again, people naturally think, "I want to get as much color as I can out of this color TV, so I will crank it up some to make sure I get the most out of it!" No. Bad mistake.
If you move the color setting down to zero you will notice that your picture will turn into a black and white image. The optimum setting for color is achieved by increasing the setting just to the point where colors look natural and not a bit more! Flesh tones should look natural and without any hint of an unnatural glow. Grass should look naturally green rather than screaming spray-paint green.
When adjusting color, make sure that your test image has relatively unsaturated colors. Flesh tones or natural landscapes are ideal. It is impossible to set color properly if you are using a brilliant red Ferrari as your test subject.
On the large majority of video systems, the optimum setting for color is somewhere near the middle of the scale. However, trust your eyes for the optimum setting and think "what looks like the most natural, accurate reproduction of reality?" Any overdriving of color will make the image look artificial.
TINT or HUE. The tint control adjusts color balance rather than color intensity. It is an easy control to set properly, but for some reason many people don't get it right. When flesh tones look either too green or too magenta, a phenomenon you see with amazing frequency, it is because the tint control is not set properly.
Find a human face and freeze-frame it. (In choosing your test subject, note that lighter skin tones will show errors in tint more readily than darker skin tones). As you move the tint control to one end of the spectrum, the face turns green; as you move it to the other extreme, the face turns magenta (red+blue).
The correct setting for tint is the point near the middle of the scale at which you can detect no hint of either green or magenta. It is the most neutral point between the two extremes. The flesh tone looks the most natural at this point.
SHARPNESS or DETAIL. The final setting is sharpness or detail. Now, pray tell, who in their right mind wouldn't want the sharpest, most detailed picture they could get? And since there is a control that lets you turn it up, why not turn it up? That's what many folks do, and of course it's exactly the wrong thing to do.
The sharpness control adds processed information to the picture that is NOT part of the original video signal. It adds artificially highlighted edges, and makes the picture look less natural than it otherwise would. This is most evident along the continuous edge of a dark object against a middle-toned background. When sharpness is overdriven the dark edge will be outlined by a white ringing effect that increases contrast just along the edge of your dark object. That edge "highlighting" effect is created by the sharpness control. It is an artificial manipulation of the image. It wasn't in the original scene, and it shouldn't be on your screen either.
On most televisions, the optimum setting for sharpness is zero. On many digital projectors, the optimum setting is either in the low or middle part of the scale. Picture tube televisions and digital projectors behave differently in this regard; on a digital projector it is often possible to fuzz the image by setting sharpness too low.
Now look at your picture with the sharpness turned down or off depending on what works best on your system. You will see a smoother, more natural image. It might take some getting used to, since you may be accustomed to viewing video with all the artificial edge enhancements that create the illusion of added sharpness.
However, when the interference and noise from the artificial sharpness enhancer is removed, you are seeing the most genuine reproduction of the video signal that your projector or TV is capable of. And if you view it for a while, you will gain an appreciation for just how smooth, natural, and satisfying the picture can really look.

Dec 12, 2009 | Sony Grand WEGA KDF-55XS955 55" Rear...

1 Answer

My 50 "Magnavox rear projection has a vary faint picture


If its over 6 years old , sound like the tube are shot , bright/focus together = bad tubes
sorry

Jun 30, 2009 | Philips Magnavox 50ML8105D 50" HDTV DLP TV

1 Answer

Wd-62825 mitsubishi dlp tv


Had the same problem. Service replaced the lamp engine. It did help.

Dec 18, 2008 | Mitsubishi WD-62825 62" Rear Projection...

1 Answer

Picture quality is bad


it sounds like your green gun is faulty or a faulty colour drive, a transistor on the back of your CRT board also check for dry solder joints.

Dec 04, 2008 | Sony Grand WEGA KDF-60XS955 60" Rear...

1 Answer

Double vision


In this particular unit what you're describing is a failure of the convergence amps. This unit takes two STK392-110 Sanyo built Ic's and one or more 2.2 ohm/1w resistors for the yoke return. replace these and you should restore normal function after a little convergence touch-up.
It's not an expensive job in a qualified shop either. If any of this sounds a bit complicated take it in and have the job done.
Have a great day!
Bill

Dec 07, 2007 | JVC AV-48WP30 48" Rear Projection...

1 Answer

No contrast


first turn your color all way off or down.try turning your contrast way down as far as it will go you should see a darker picture. now bring up the brightness to a point half way. bring the contrast up to see grays and whites and blacks...adjust brightness more if need be. now you should see a nice black and white picture. no bring your color up last ...not saturate but to your liking. if you stilll got problems i bet your video out transistor is shorted....meaning shop work.

Aug 31, 2007 | Panasonic PT-51HX41 51" Rear Projection...

1 Answer

Ccreen quality


There is no yellow tube my freind, only a red, blue, and a green one. If its too bright, have you tried to turn down the black level yet or brightmess, and also the contrast. On these sets you don't need to have the brightness up way high, as the contrast does this. If, when you turn down the brightness, and the picture looks dull, you may need to clean off the mirrors, and or the lens for the picture tubes. If that does not help, there could be a problem in the screen drive circuit or the high voltage block. Good Luck Ps Please do not forget to rate this thread.

Dec 08, 2006 | RCA P52926 52" Rear Projection Television

Not finding what you are looking for?
Projection Televisions Logo

Related Topics:

34 people viewed this question

Ask a Question

Usually answered in minutes!

Top Projection Televisions Experts

Jaime Hernandez

Level 3 Expert

2267 Answers

matt martin
matt martin

Level 3 Expert

1191 Answers

yadayada
yadayada

Level 3 Expert

61037 Answers

Are you a Projection Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...